77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/utils/logging.h"
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#include "td/utils/optional.h"
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#include "td/utils/Slice.h"
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#include "td/utils/Status.h"
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struct sqlite3;
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namespace td {
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namespace detail {
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class RawSqliteDb {
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public:
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RawSqliteDb(sqlite3 *db, std::string path) : db_(db), path_(std::move(path)) {
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}
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RawSqliteDb(const RawSqliteDb &) = delete;
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RawSqliteDb(RawSqliteDb &&) = delete;
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RawSqliteDb &operator=(const RawSqliteDb &) = delete;
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RawSqliteDb &operator=(RawSqliteDb &&) = delete;
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~RawSqliteDb();
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template <class F>
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static void with_db_path(Slice main_path, F &&f) {
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f(PSLICE() << main_path);
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f(PSLICE() << main_path << "-journal");
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f(PSLICE() << main_path << "-wal");
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f(PSLICE() << main_path << "-shm");
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}
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static Status destroy(Slice path) TD_WARN_UNUSED_RESULT;
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sqlite3 *db() {
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return db_;
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}
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CSlice path() const {
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return path_;
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}
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Status last_error();
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static Status last_error(sqlite3 *db, CSlice path);
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bool on_begin() {
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begin_cnt_++;
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return begin_cnt_ == 1;
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}
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Result<bool> on_commit() {
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if (begin_cnt_ == 0) {
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return Status::Error("No matching begin for commit");
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}
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begin_cnt_--;
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return begin_cnt_ == 0;
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}
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void set_cipher_version(int32 cipher_version) {
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cipher_version_ = cipher_version;
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}
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optional<int32> get_cipher_version() const {
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return cipher_version_.copy();
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}
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private:
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sqlite3 *db_;
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std::string path_;
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size_t begin_cnt_{0};
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optional<int32> cipher_version_;
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};
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} // namespace detail
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} // namespace td
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